摘要:
HYDROCARBON AMIDES AND N-SUBSTITUTED HYDROCARBON AMIDES CONTAINING AT LEAST 12 CARBON ATOMS IN THE HYDROCARBON BACKBONE CHAIN AND ALKYL SUBSTITUENTS AT THE C-3, 7 AND 11 POSITIONS AND/OR DOUBLE BOND UNSATURATION BETWEEN C-2,3, C-6,7, AND C-10,11, AND/OR SUBSTITUENTS AT AT EACH OF POSITIONS C-2,3,6,7,10 AND 11 WHICH ARE ARTHROPOD MATURATION INHIBITORS.
摘要:
2-PHENYLGLYCIDAMIDES SUCH AS 3-CHLORO-2-(2,4-DICHLOROPHENYL)GLYCIDAMIDE, ARE DESCRIBED. THE COMPOUNDS HAVE UTILITY IN THE POLYMER FIELD AND ALSO POSSESS USEFUL BIOLOGICAL ACTIVITY.
摘要:
PROCESS FOR THE PREPARATION OF (CIS-1,2-EPOXYPROPYL) PHOSPHONIC ACIDS, ESTERS OR SALTS THEREOF WHICH COMPRISES ELIMINATING OR EXTRUDING SULFUR DIOXIDE, SULFUR TRIOXIDE, CARBON MONOXIDE OR NITROGEN FROM AN APPROXIMATELY SUBSTITUTED 1,3-OXATHIETANE S,S-DIOXIDE COMPOUND, 1,3,4-DIOXATHIOL S, S-DIOXIDE COMPOUND, 3-OXO OXETAN COMPOUND AND 1,3,4-OXADIAZOLINE COMPOUND, RESPECTIVELY. THE 1,2-EPOXYPROPYL PHOSPHONIC ACIDS OR SALTS THEREOF ARE ACTIVE ANTIBACTERIAL AGENTS.
摘要:
A PROCESS FOR PREPARING A DIASTEREOMER OF AN OPTICALLYACTIVE ESTER OR AMIDE OF (CIS-1,2-EPOXYPROPYL) PHOSPHONIC ACID, WHICH COMPRISES SEPARATING ENANTIOMERS OR DIASTEREOMERS OF AN ESTER, AN AMIDE OR A SALT OF SAID ESTER OF AMIDE DERIVATIVE OF (CIS-1,2-EPOXYPROPYL)PHOSPHONIC ACID ENANTIOMERS. THE DERIVATIVES OF THE OPTICALLY-ACTIVE ISOMERS OF (CIS-1,2-EPOXYPROPYL) PHOSPHONIC ACID CAN THEN BE CONVERTED TO (CIS-1,2-EPOXYPROPYL)PHOSPHONIC ACID ENANTIOMERS OR A SALT THEREOF. (-) (CIS-1,2-EPOXYPROPYL) PHOSPHONIC ACID AND ITS SALTS ARE ACTIVE ANTIBIOTICS, WHICH ARE EFFECTIVE AGAINST VARIOUS GRAM-NEGATIVE AND GRAMPOSITIVE PATHOGENS.
摘要:
A PROCESS FOR PREPARING GLYCIDYL ESTERS OF POLYCARBOXYLIC ACID ANHYDRIDES BY CATALYTICALLY REACTING EPICHLOROHYDRIN AND A POLYCARBOXYLIC ACID ANHYDRIDE IN THE PRESENCE OF WATER OR BY REACTING WATER WITH THE POLYCARBOXYLIC ACID ANHYDRIDE IN THE PRESENCE OF EPICHLOROHYDRIN AND THEN CATALYZING THE EPICHLOROHYDRIN, HYDROLYZED POLYCARBOXYLIC ACID ANHYDRIDE REACTION WHEREIN THE ABOVE REACTIONS ARE CARRIED OUT AT A TEMPERATURE NO HIGHER THAN ABOUT 200* F. TO FORM CHLOROHYDRIN ESTERS FOLLOWED BY DEHYDROHALOGENATION WITH ALKALI MATAL HYDROXIDE AT A TEMPERATURE OF ABOUT 70*F. TO 150*F.
摘要:
It is disclosed that citric acid or its salts are obtained by the hydrolysis of a 3-carbamoyl-3-hydroxy-4-cyanobutyric acid or salt, that a 3-carbamoyl-3-hydroxy-4-cyanobutyric acid or salt is obtained from a 3-carbamoyl-3,4-epoxybutyric acid or salt, that a 3-carbamoyl-3,4-epoxybutyric acid or salt is obtained from a 3carbamoyl-3-hydroxy-4-halobutyric acid or salt, that a 3carbamoyl-3-hydroxy-4-halobutyric acid is obtained from a 3cyano-3-hydroxy-4-halobutyric acid or salt, that a 3-cyano-3hydroxy-4-halobutyric acid or salt is obtained from a 3-oxo-4halobutyric acid or salt, that a 3-oxo-4-halobutyric acid or salt is obtained from a 3-oxo-4-halobutyryl halide, and that a 3-oxo4-halobutyryl halide is obtained from diketene. Preferred halide compounds are compounds of chlorine.